Biology Mock 2025

Question 1 of 50

The chemical used to test for starch is

Question 2 of 50

An organism that lives on or in another organism and harms it is a

Question 3 of 50

Which blood cells help in the clotting of blood?

Question 4 of 50

Water moves up the stem of a plant mainly through the

Question 5 of 50

A quick, automatic response to a stimulus, such as pulling the hand from a hot object, is a

Question 6 of 50

The growth of a plant shoot towards light is called

Question 7 of 50

The theory of evolution by natural selection was proposed by

Question 8 of 50

The total number of organisms of one species living in an area is the

Question 9 of 50

A light microscope has a ×10 eyepiece and a ×10 objective. What is the total magnification?

Question 10 of 50

Which part of a light microscope is turned to bring the specimen into sharp focus at high power?

Question 11 of 50

The branch of biology that studies tiny organisms such as bacteria is

Question 12 of 50

Which fish are most commonly farmed in ponds and cages in Ghana?

Question 13 of 50

The rearing of fish under controlled conditions is called

Question 14 of 50

A "closed season" for fishing helps conservation by

Question 15 of 50

Proteins are made on the

Question 16 of 50

Which structure is found in plant cells but not in animal cells?

Question 17 of 50

The plant cell wall is made mainly of

Question 18 of 50

Which organelle controls the activities of the cell?

Question 19 of 50

Bile is produced by the

Question 20 of 50

Digested food is absorbed mainly in the

Question 21 of 50

The chamber of the heart that pumps blood to the whole body is the

Question 22 of 50

The end products of anaerobic respiration in yeast are

Question 23 of 50

Lactic acid builds up in human muscles during

Question 24 of 50

The transport of manufactured food in plants is called

Question 25 of 50

The part of the brain that controls balance and coordination of movement is the

Question 26 of 50

The hormone that controls the "fight or flight" response is

Question 27 of 50

In humans, fertilisation normally takes place in the

Question 28 of 50

Fruits that are dispersed by wind are usually

Question 29 of 50

A cross between a homozygous tall plant (TT) and a homozygous short plant (tt) gives offspring that are

Question 30 of 50

Sickle-cell anaemia is an example of

Question 31 of 50

In the food chain grass → grasshopper → lizard → hawk, the lizard is a

Question 32 of 50

The relationship between Rhizobium bacteria and leguminous plants is

Question 33 of 50

Compared with a light microscope, an electron microscope

Question 34 of 50

The Chorkor smoker improves local fish processing because it

Question 35 of 50

Bacteria belong to the kingdom

Question 36 of 50

The part of the brain that regulates body temperature is the

Question 37 of 50

Codominance is shown by the

Question 38 of 50

Lamarck's theory of evolution was based on

Question 39 of 50

Succession on bare rock begins with

Question 40 of 50

Prokaryotic cells differ from eukaryotic cells because they lack

Question 41 of 50

Which characteristic places a bat in the class Mammalia rather than Aves?

Question 42 of 50

Auxin causes a shoot to bend towards light because it

Question 43 of 50

The hormone that triggers ovulation is

Question 44 of 50

In a dihybrid cross of two heterozygotes (AaBb × AaBb), the expected phenotypic ratio is

Question 45 of 50

A colour-blind man marries a woman who is not a carrier. The probability that their son is colour-blind is

Question 46 of 50

In a population, 20 snails are marked and released. Later, 30 are caught, of which 5 are marked. The estimated population is

Question 47 of 50

Only about 10% of energy passes to the next trophic level. If producers fix 10,000 kJ, energy reaching secondary consumers is about

Question 48 of 50

A cell measures 40 mm in a drawing magnified × 400. Its actual size is

Question 49 of 50

The resolving power of a light microscope is limited by

Question 50 of 50

The endosymbiotic theory explains the origin of